Top 39 Contractors in PSC AC23: National Defense R&D Services; Atomic Energy Defense Activities; Experimental Development, Jul 2025–Jun 2026

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 85% of PSC AC23 contract dollars from July 2025 through June 2026

Contract obligations
$1,246,364,275 Net of deobligations, by contracts coded PSC AC23
Contractors
41 Parent companies with an obligation
Largest contractor
RTX Corporation $577 million, 44.2% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download

Full ranking

Rank Contractor Net obligations Share Trend
1
RTX Corporation 12 awardees, including Raytheon Company, RTX BBN Technologies, Inc. and Rockwell Collins Simulation & Training Solutions LLC
Top agencies
$576,684,359
2
Lockheed Martin Corporation 7 awardees
Top agencies
$78,599,778
3
Intuitive Research and Technology Corporation
Top agencies
$77,664,548
4
The Boeing Company 2 awardees
Top agencies
$77,366,893
5
The Johns Hopkins University Applied Physics Laboratory LLC
Top agencies
$76,610,698
6
Utah State University Space Dynamics Laboratory
Top agencies
$64,477,277
7
Amentum Holdings, Inc. Through Amentum Technology, Inc.
Top agencies
$44,438,415
8
Northrop Grumman Systems Corporation 4 awardees
Top agencies
$40,755,817
9
The Charles Stark Draper Laboratory, Inc.
Top agencies
$39,385,798
10
L3Harris Technologies, Inc. 3 awardees
Top agencies
$29,300,521
11
Mistral Inc
Top agencies
$26,160,629
12
Dtechlogic LLC
Top agencies
$22,633,000
13
Axient LLC
Top agencies
$18,331,986
14
Parsons Corporation Through Parsons Technical Services Inc.
Top agencies
$14,620,480
15
Isys, Incorporated
Top agencies
$13,088,080
16
Arctic Slope Regional Corporation 3 awardees, including Asrc Federal System Solutions LLC and Analytical Services, Inc.
Top agencies
$11,433,401
17
KBR Wyle Services LLC
Top agencies
$8,305,508
18
York Space Systems LLC
Top agencies
$5,303,346
19
Sonalysts Inc.
Top agencies
$4,414,566
20
Chickasaw Nation Through Corvid Technologies, LLC
Top agencies
$4,408,000
21
Modern Technology Solutions, Inc.
Top agencies
$4,085,682
22
MTI Systems Inc.
Top agencies
$1,489,500
23
Space Exploration Technologies Corp.
Top agencies
$1,241,817
24
Control Vision, Inc.
Top agencies
$1,201,153
25
Georgia TECH Applied Research Corp 2 awardees
Top agencies
$1,157,177
26
Scientific Systems Company, Inc.
Top agencies
$999,459
27
Parts Life Inc.
Top agencies
$999,178
28
DEF-Logix Inc
Top agencies
$850,259
29
Canyon Consulting, LLC
Top agencies
$724,000
30
Anduril Industries Inc.
Top agencies
$687,336
31
Serco Inc
Top agencies
$685,285
32
Hana Industries, Inc.
Top agencies
$605,224
33
Hughes Network Systems LLC
Top agencies
$487,083
34
General Dynamics Corporation 2 awardees, including General Dynamics Mission Systems, Inc.
Top agencies
$477,788
35
L3 Technologies, Inc.
Top agencies
$308,381
36
Em Photonics Inc.
Top agencies
$294,000
37
Aalyria Technologies, Inc.
Top agencies
$264,268
38
Resonant Sciences LLC
Top agencies
$43,016
39
Special Aerospace Services, LLC
Top agencies
$27,007
Show 14 more

39 of 41 contractors listed here. See the rest on GovTribe.

How this ranking works

  • Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
  • Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $1.3 billion obligated before deobligations, so they never pass 100%.
  • Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
  • Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
  • Rank changes compare with Jul 2024–Jun 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
  • Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
  • Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 PSC AC23 contractors in Jul 2025–Jun 2026?

1. RTX Corporation ($577M), 2. Lockheed Martin Corporation ($78.6M), 3. Intuitive Research and Technology Corporation ($77.7M), 4. The Boeing Company ($77.4M), 5. The Johns Hopkins University Applied Physics Laboratory LLC ($76.6M), 6. Utah State University Space Dynamics Laboratory ($64.5M), 7. Amentum Holdings, Inc. ($44.4M), 8. Northrop Grumman Systems Corporation ($40.8M), 9. The Charles Stark Draper Laboratory, Inc. ($39.4M), 10. L3Harris Technologies, Inc. ($29.3M).

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